#include<stdio.h>
int main(){
	int a = 4;
	printf("a=%d\n",a);
	int b = ++a;
	/*
	 * int b = ++a ;
	 * a = a + 1;
	 * b = a
	 */
	/*
	 * int b = a++;
	 * b = a ;
	 * a = a + 1;
	 */
	printf("=============\n");
	printf("a=%d\n",a);
	printf("b=%d\n",b);
}
